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IP65 Modbus Light, Temperature, Humidity Sensor connected to HMI

 

If you are looking for a light, temperature and humidity sensor to connect to our HMI…

HMI project

 

Basic HMI project for read the sensor values via the Modbus protocole over RS485

Download here


HMI screen example

IP65, Slave Modbus RS485
Light + Temperature + Humidity Sensor
Size of the plastic case: 90 x 58 x 35 mm

 

Wirring

Wire colour Description
Red Power + 12-24 VDC
Green Power – GND
Yellow RS485 A+
Blue RS485 B-

 

Communication parameters

Default 9600 bds, 8 bits, none, 1 stop

 

Register

Modbus Register Description Data type
4×0 Luminosity/Light (Lux)
Read only 16 bits unsigned 0 to 65535
4×1 Temperature (°C *100)
Read only 16 bits signed -4000 to +12300
4×2 Humidity (% *100)
Read only 16 bits unsigned 0 to 10000
4×100 Not useful Read / Write 16 bits signed
4×101 Total number of measurement points Read / Write 16 bits signed 1-20
4×102 Modbus Slave ID / Device address Read / Write 16 bits signed Default 1
4×103 Baud rate (1=2400,..,3=9600,..,6=115200) Read / Write 16 bits signed Default 3 = 9600 bds
4×104 Not useful Read / Write 16 bits signed
4×105 Not useful Read / Write 16 bits signed